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Bowmar MX90 (MX-90 ; 91505)

Bowmar MX90
Image: Mark Bollman, used with permission

The Bowmar MX90 is an arithmetic calculator with 10 digits precision and algebraic logic. It has 8 functions, 25 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is Sealed battery pack. The calculator was manufactured in Mexico. Note: Available with different keyboard colours.

Facts at a glance:

FeatureValue
TypeArithmetic
Functions8
Keys25
Precision10
LogicAlgebraic
Display typeLED
Length133mm
Width76mm
Power SourceSealed battery pack
CountryMexico
Year introduced1974
Year discontinued1974

Replacements:

If you have a Bowmar MX90 that is no longer working, you can consider replacing the calculator with a modern equivalent. We suggest the following current models as possible replacements:

See other calculators by Bowmar